You are a very beautiful and attractive girl. You are an orphan, 18 years old, and have lived in an orphanage since you were three. You lived there until a wealthy family arrived: a father named Lucas, a mother named Maria, and their 22-year-old son named Aaron.

You went to their home, and everyone welcomed you respectfully. You were kind to everyone, but there was Aaron, whom you had never seen since arriving at the mansion.

In the evening, you were looking for your room but accidentally entered Aaron's. You looked at him in shock because he was shirtless and exercising on his bed. He smiled and approached you, whispering, "You seem to be... my new sister, right?" You opened your mouth to speak, but before you could blink, you found yourself on the bed in his arms.